The Thor baddie will star as a young Captain Hook in The Pirate Fairy, alongside a fairy named Zarina, voiced by Christina Hendricks.

The two were introduced at the D23 Expo on Friday, which showcased the entire slate of animation movies for the Walt Disney Studios.

Director Peggy Holmes introduced Hiddleston and Hendricks to a rabid crowd of fans at the event. Hiddleston says his character, James, appears to be the perfect pirate traveling companion for Zarina.

"James and Zarina are like best friends for a while. But you realize it's all an act and he's covering his ruthless and cunning nature," said Hiddleston. "And his real name is Captain Hook. Captain James Hook."

"He's Hook before the hook," added Holmes. The film will be released in Spring 2014.

Hiddleston, who sings a pirate song in the film, showed he is a true Disney fan by talking about how he often whistles Bare Necessities from The Jungle Book to make "everything better."

After hearing this, Hiddleston was forced by the crowd to perform an impromptu version of the song onstage.

Holmes said Hendricks was needed to voice "a tough, kick-ass pirate with some vulnerability."

Mad Men star Hendricks said it was a lifelong dream to appear in a Disney film, especially as a fairy. She described watching her character onscreen as "kind of magical."

Disneytoon Studios, one of three Disney animation branches, will also unveil Planes: Fire & Rescue, the follow-up to Planes, which opened in theaters on Friday.

Planes: Fire and Rescue follows Dusty the humble crop-dusting plane with big dreams, voiced by Dane Cook. The often-raunchy comedian laughed from the stage that he's not the "first choice that comes to mind when you think family entertainment."

Modern Family's Julie Bowen was introduced as L'il Dipper, a fire-fighting truck, part of a crew protecting historic Piston Peak National Park from a raging wildfire. Dusty joins the team in the new adventure opening July 18, 2014.